"Gary asked her to marry him last month," the source tells Us. "She wasn't certain about Gary and didn't want things to be that serious between them."

Evans and Head's relationship has been on and off for over 5 months. On April 8, Evans tweeted, "I'm very depressed. Me and Gary broke up for good." And she briefly reunited with her former flame, Kieffer Delp, at the end of April before calling it quits again.